Dishwashing machine



Oct. 5 1926.

Filed April 2o. 192s 2 Sheets-Sheet 1 INVENTOR ATTORNEY Oct. 5 ,1926.1,602,189

Y P. H. DAvls DIsHwAsHING MACHINE Filed April 2o', 1923 2 sheets-sheet 2@n w ku ll-IIIIIIl-IIIH ."'IINIIWII IN VEN TOR A TTORIYE Y wdr PATRICKHENRY DAVIS, OF LEONIA, NEW'A JERSEY, ASSIGNOB T0 2 WASHING MACHINECOMPANY, OF JERSEY CITY, NEW JERSEY, A CORPORATION 0F NEW JERSEY.

nrsnwasrmve MACHINE.

rIhis invention relates to improvements in dish-washing machines, andmore particularly to machines of this character whereinthe wash waterand suds are forced through .a manifold and delivered onto the dishes inthe form of a spray, the object of the invention being to provide animproved manifold whereby a rinsing spray of clear, clean water or steammay be delivered on the washed dishes, and which manifold is readilyremovable fi'omthe machine. With the foregoing and other objects inview, whichwill appear as the description proceeds, the inventionconsists in the novel 'features of construction and combination of partswhichL will be more fully described hereinafter and particularly pointedout in the claims.

In the drawings accompanying and forming part of this specification,

vF1 re l is any end elevation of a -dlshwashin machine showing theoutside pipe connections;

Fig. 2 is a-sectional end view showing the upper and lower manifolds inoperative position; l y V 3' is a sectional view taken approxlmately onthe line 3 3 of Fig. 4;. L' Fig. 4 is a plan view,` on an enlargedscale, of the manifold, showing the same partly broken away and insection, and also showlng' -a portion of the end wall of the machine insection l Fig. 5 is a plan view of one of the sup-` porting connectionsfor the manifold;

Fig. 6 is an end view of the connections shown-,in Fig. 5'; Y

Fig. 7 is a 'plal view of the connecting sleeve for the main head of themanifold;

Fig. 8 isan end view of the sleeve shown in F1g.'7; Y

Fig. 9 is a sectional view taken on the line 9--9 of Fig. 4 looking inthe direction of `itheiarr'ow; and,

Fig, 1o is n longitudinal national view through the manifold head lookinin the direction of the` outlet pipes thereo l The same characters ofreference designate the same parts in the different figures of the Iawings' v z As here'inbefore stated, the invention has i nf. pron' DISHto do more particularly with the manifold and its supporting means, andtherefore the washmg-machine will be described only in a general way.

. Referring tothe drawings, 2 designates the side walls and 3 the endwalls of the machine, the interior of which is provided n be termed aduplex manifold; that is to.

say, a manifold in which two separate chan- -nels are provided, one for'the wash'wat/er and suds andthe other for rinse water. ferringespecially to`Fig. 4, the manifold is cast in one piece and comprises adouble right-angles thereto perforated branches 12 and 13, respectively.The manifold is" so formed that the head portion 11 liesf'inw planeabove the portion 10as`shown in. Fig. 3, while the respectivecommunicating `pipesl3 and 12 are 'all in thefsame hori- .7-'5tubularhead 10, 11, from which extend atV zontal plane, as shown in Fig.9. The head ends to provide two separate and distinct y portions 17 and16 in V.approximately the same horizontal plane.

For supporting the manifold a connecting sleeve 18 is provided, ,saidsleeve having a threaded portion 19 at one end thereof adapted to passthrougha'n` opening in the end wall of the casing and connect with astandpipe 20 at the outside of said casing, and which stand ipecommunicates at its lower end with tiie interior of' the tank 5. Thesleeve 18 is provided with a boss 21,

referably formed so as to receive a wrench gor turning it and ada ted toclamp the end wall between it and t e end of the standipe. The smoothportion 1S of the sleeve 1s adapted to tit snugly within the inlet endportions 10 and 11 are divided at their inlet watertight joint, whilepermitting said portion 17 to rotatel on the sleeve when the manifold istobe removed from the machine. A. second tubular connecting me'lhber isprovided for supporting the inlet, portion 16 of the head 11,- thismember having a threaded end 22 adapted to pass through an opening inthe gend'wallY 3 and connect with a standpipe 23, this connecting memberalso having a boss 24 formed to receive a wrench and adapted to clampthe end wal/l 3'between it and the standpipe.l Formed in# tegral withlthe lower portion of the boss 24 is a seat-forming member or socket 25which is provided with an internal semi-annular groove adapted toreceive the lianged or shouldered end of the head 16 and retain the samein watertight engagement with the boss 24, as shown clearly 1n Fig. 4.It will be understood, of course, that provision may be made for thereception of suitable packing between the end of the connecting sleeve18 and its seat in the head portion 17, as well as between the head 16and the member 24, should such packing be necessary to make theconnections watertight.

' From theu foregoing 4it will readily be seen 4 that the manifold ismaintained in its operative, horizontal position by engagement of thehead portion 16 with its supporting 'socket 25, and that` the manifoldcan readily be removed from the machine by rotating the manifold on itssleeve support 18 sufficiently to carry the head 16 out of its socket,whereupon the manifold may be removed by pulling the same in a directionaxially of the head, thus causing the head 17 to slip off from itssleeve 18. The machine is provided in the side wall of the washingchamber with an opening which is closed by a removable door 26 having ahandle 27 /for operating the same, through which openingaccess is had tothe interior of the washing chamber for removing and replacing'themanifold .as f

well as the articles fto` be washed.

Itwill be seen by referring to Fig. 2 that a pair of manifolds, such asthat described, are provided, one above the other, the upper sides-ofthe lower pipes 12. and 13 and the lower sides of the upper pipes 12.and 13 l being perforated so that a spray of washing Afluid is directedabove as well as below on articles adapted to be supported therebetween.The supporting means for such articles has been omitted from thedrawings for the sake of rclearness, since it forms no part of thepresent invention. It will be observed that, owing to the curved form ofthe top,portion of the casing as shown here- 1n, the upper manifoldcannot be swung upwardly. `Consequently the socket 25 yfor receivmg thehead 16 of this manifold is placed with its open side down, and/themanifold 1s supported by aremovable in'28 or other suitable meanssecured int e end ioaiee wall of the casing in position to engage theunler side of the-pipes 12 near their free en s.

For facilitating the cleaning of the pipes 12 they are lopen at theirfree ends, said ends being internally lthreaded and each provided with ascrew 'plug 29forCclosing thel end when the 'manifold is in operation.The head 10 is provided-with a threaded opening in alignmendfwith eachofv the nozzles, which openings are closed by screw plugs 30. It willthus be seen that on removal of the plugs 29 and 30a cleaning brush orwire may readily be passed through the nozzles for dislodging grease orother matter which may have accumulated therein. The laterally.exten'ding curved portions 31. formed on the `rinsing pipes 13 in thepresent instance'are merely for convenience in casting, as they serve tosupport the core. After the casting is completed, these portions arethreaded interiorly-'and each provided with a plug 32.

Referring now to Fig. 1, each of the standpipes 20 and 23 enters thecasing of the machine in three places. At their upper ends theynconn'ectrespectively with the inlet heads 17 and 16 of the upper manifold, whileintermediate their ends they are each provided with a T-coupling 33 and34 respectively,

v'which communicate with the inlet heads of tained in the tank upthrough the standpipe and -the head 17 and into the pipes 12,l a

valve 35 having an operating handle 36 being provided for controllingthe passage -of the cleansing fluid through the standpipe 2l). Thestandpipe 23 is provided at 37 with a similar valve and operatinghandle. This 4 latter standpipe, however, is intended lfor supplying astream of rinsing water, and,

hence does not receive its-supply from the tank. 1The standpipe 23 lisprovided with a pair of T-couplin s 38 and 39 for connecltionrespectively with a water supply and a steam supply (not shown), andbetween said T-couplings and the point where the lower end of thestandpipeenters the tank a valve 40 is provided for controlling thesupply of water or steam to said tank,

In order to iillthe tank, the valve 37 is closed and valve 40 opened,whereupon the the tank. -After the refuse is all washed from the dishesthe pumping of, the wash fluid is discontinued. The valve 37 may nowbeopened, valve 40 remaining closed, whereupon clean, 'clear water will beadmitted through the inlet 38, or steam through the inlet 39, into pipe23 passing through connection 16, manifold 11 and vpipes 13 where it issprayed through the openings therein onto the dishes, the preferredpractice being first to admit water for rinsing the dishes and thensteam for facilitatingsthe drying thereof. The rinsing water andcondensed steam, after being sprayed on the dishes, will fall onto thepartition 6 by which it is n directed'into the tank 5. This rinsingwater and steam Will thus replenish the Wash water in the tank, theoveriow pipe 9 serving to maintain the water at the proper level in thetank.

While I have describedin detail the structure herein illustrated, it isto be understood that I do ot limit my invention to the precise featuresof construction shown, as I am aware that many mechanical changes andmodifications may be -made therein vwithout departing from the spiritand scope of the claims appended hereto.

Having thus described `my invention, what I. claim is: 4

1. The combination in a"`dishwashing machine of a casing means forsupplying a cleansing liquid and a rinsing liquid respectively to thedishes to be washed, including a one-piece manifold spaced from thecasing and comprising a head having a pair of independent, channelsextending axially therethrough adapted to be connected to the cleansingand to the 'rinsing liquid supply respectively, branches integrallyattached to the head and extended transversely acrossthe casing abovethe spacel for the dishes which branches are also provided with a pairof separated channels respectively communicating with one of thechannels of the head, said branches being provided with -a plurality ofapertures through which the cleansing and rinsing liquids canrespectively flow onto the dishes.

2. The combination in a dish-washing machine of a casing means forsupplymg a cleansing liquid and a rinsing liquid respectively to thedishes to be washed, including a one-piece manifold spaced from,

`the casing and comprising a head having a pair of independent. channelsone above the other and extending -axially therethrough adapted to beconnected tothe cleansing and to the. rinsingv .liquid supplyrespectively,

means for horizontally supporting the manifold from one wall of thecasing, branches extended transversely across the casing below the spacefor the dishes which branches are also provided Witha pair of separatedchannels disposedv in the same horizontal plane respectivelycommunicating with one of the channels of the head, said branches beinglprovided with a plurality of apertures through which the cleansing andrinsing liquid can respectively flow onto the dishes.

3. In a dish washing machine, the combination of a casing means forsupplying a cleansing liquid and a rinsing liquid respectively to thedishes to be washed, including a pair of spaced-apart inlet memberscommunicating with the interior of the casing, a manifold having a headportion with superposed channels therein and spaced apart inlet portionshaving channels communicating respectively with said superposedchannels, connecting means for supporting said manifold and forestablishing communication between the said inlet members and inletportions, said connecting means bein adapted to permit removal of saidmanifo d when the latter is partially rotated thereon.v

4. In a dish washing machine the combination of a casing means for suplying a cleansing liquid and a rinsing liquid respectively to the dishesto be washed, including a pair of spaced-apart inlet memberscommunicating with the interior of the casing, a manifold having aheadportionvwith two superposed channels therein and a pair of laterallyextending channeled inlet portions communicating respectivelyjwith theupper and lower channels in said head portion, hollow connecting meansbetween said inlet portions and the inlet members, said means includinga sleeve portion forming a pivotal support for the manifold and a socketportion for retaining the manifold in operative position.

l 5. In'a dish washing machine, a casing means for supplying twoseparate iiuids to the interior of the casing, acne-piece mani. fold.having separate inlet members and a plurality of spray forming members,A.connecting members for establishing communication between the supplymeans Aand said inlet members and including a hollowV pivotal supportfor one of said inlet members and a socket support for the other inlet.member.

In testimony Awhereof I have Vsigned my name to this specification.

l PATRICK HENRY DAVIS.

